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In 1983 I knew a programmer whose fondest professional memory was of the time he found a use for an instruction that swapped the bytes of the program counter. "It got me where I needed to go!"
What processor had such an instruction? Why?? Was it merely an instance of an instruction to swap the bytes of any register? — Tamfang ( talk) 04:10, 25 December 2019 (UTC)
If I turn off my desktop, one of the five lights on the modem goes out. If I unplug the computer and plug it back in without turning it on, the fifth light comes back on. There is also a green light where the yellow wire from the modem goes into my desktop, which goes off if I turn off my computer when it stays plugged in.
I don't know that much about the purpose of each light, but if the Internet goes out, only the first light stays on. The second light blinks while the Internet tries to come back, and once it does, the third light comes on. I don't remember what the fourth light does when the Internet goes out and comes back.— Vchimpanzee • talk • contributions • 20:07, 25 December 2019 (UTC)
THERE ARE FOUR LIGHTS! JIP | Talk 11:49, 27 December 2019 (UTC)
Computing desk | ||
---|---|---|
< December 24 | << Nov | December | Jan >> | December 26 > |
Welcome to the Wikipedia Computing Reference Desk Archives |
---|
The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
In 1983 I knew a programmer whose fondest professional memory was of the time he found a use for an instruction that swapped the bytes of the program counter. "It got me where I needed to go!"
What processor had such an instruction? Why?? Was it merely an instance of an instruction to swap the bytes of any register? — Tamfang ( talk) 04:10, 25 December 2019 (UTC)
If I turn off my desktop, one of the five lights on the modem goes out. If I unplug the computer and plug it back in without turning it on, the fifth light comes back on. There is also a green light where the yellow wire from the modem goes into my desktop, which goes off if I turn off my computer when it stays plugged in.
I don't know that much about the purpose of each light, but if the Internet goes out, only the first light stays on. The second light blinks while the Internet tries to come back, and once it does, the third light comes on. I don't remember what the fourth light does when the Internet goes out and comes back.— Vchimpanzee • talk • contributions • 20:07, 25 December 2019 (UTC)
THERE ARE FOUR LIGHTS! JIP | Talk 11:49, 27 December 2019 (UTC)